Fatal error: Uncaught Error: Class "Symfony\Component\Yaml\Exception\RuntimeException" not found in E:\install\laragon\www\nom_du_projet\vendor\symfony\yaml\Exception\ParseException.php:19 Stack trace: #0 {main} thrown in E:\install\laragon\www\nom_du_projet\vendor\symfony\yaml\Exception\ParseException.php on line 19